barrows



June 2, 1931. D. s. BARRows CAR TRUCK 1927 2 Sheets-Sheet 1 D. s. BARRowS 1,807,683

CAR TRUCK June 2, 1931.

Filed oct. 10, 1921.

2 Sheets-Sheet 2 E" --l 151:1; v 91235-6 'bolster springs t e, rei

ntent it Application tiled Dctobcr 10 21927. Serial No. 225,23*?.

'lthis invention relates to railway car trucks and more particularly to the construction of the side es therefor and the connection ot the bolster thereto.

The principal object oitmy invention, generally considered, is the provision of car trucks in which the side ames thereof are rigiedby an integral bridge wall extending between the lower portions of the bolster col to limit downward movement of the bolster and prevent the springs from going solid, together with provision for locking the bolster in place with respect to the side trames. i

in object of my invention is the provision ot a car truck in which the side frames thereout are stiened by integral bridges between the lower portions of the bolster guide colleaving bolster openings thereabove large enough for insertion of a bolster Without outer 'de l but not permitt` the bolster togbu drtliled for the being supported on the tension member of the side frame on either side of the bridge, said springs supporting a sp t g cap which is provided with upstandlugs which interlock in corresponding notches in the bolster and provide outer guides therefor which cooperate with theuside frame. other object of my invenon is the provision' of means for loc a bolster in assembled relation with respect to a side frame, which frame is provided with a bolster opening insuilicient in depth to permit dropping the bolster for same, said lockmeans comprislng a sp cap portion which overlies the outer bolster springs only 03p and is provided with upstanding lugs interi locking with the bolster and providing removable outer guides therefor, said spring cap being provided with a depending flange overlyl ing the outer bolster springs for retaining them in place.

A further object of my invention is to proide -a car trukbwige side fram `stilfeneld y an inte ri portion oq'ng t e lower part llithe bolster opening, said truck being provided with a plank extending only to the bridge wall and interlocked withthe upper web of the tension member which is extended inwardly to provide cient area for the purpose, the tension member of said side Vtrame between the vholster guide columns being widened tor support bolster springs on either side of the bridge wall, bolster springs supported on said widened portions, the outer springs g directly lon the side frame and the inner.

springs restingV on the spring plank, said outer springs in turn suppo a sp cap which is provided with upstanding lu as removable outer bolster guides. Other objects and advantages oit the invention relating to the particularv arrangemen and construction of the various parte 'e n become apparentes the description proceeds. Referring to the drawings illustrating my invention, the scope whereof is defined by the appended claims, Y

Figure '1 ilsa. side elevation of a truck illustrating one embodiment of my invention,

ing in the direction of the arrows;

' Fig. 2 is a horizontal sectional view on the line 2 2 of Fig. 1, looking inthe direction of the arrows;

Fig. 3 is a vertical lsectional View on the line 3 3 of Fig. 1, looking in the direction of the arrows; v

' Fig. i is a horizontal sectional view on the 4a portion of the bolster being shown 1n vertical section on the line 1-1 of F 2, loohline 4 4 of rig. e, 100mg in the aiment ofltzhe arrows; f

ig. 5 is a plan o the spring cap with integral bolster guides;

Fig. 6 is a side elevation of 'said sp Figlis a fragment horizontal sectional view l'corresponding to ig. 2 but showing a modification.

Referring to the drawings in derail, like parts being designated by like reference characters,'and first considering the embodimentl of my invention illustrated in Figs. 1 to 6, inclusive, there is shown a side frame 1 with a compression member 2, a tension member 3,

bolster guide columns or struts 4 spacing portions of said intermediateI compression and tension members and leaving a. bolster;

opening 5 therebetween.

The lower portions of said bolster guide columns 4; are joined by an integral bridge wall 6 which in the present embodiment is illustrated as hollow and comprises a pair of upstanding side walls 7 joined by an upper horizontal wall or web 8. This bridge wall 6 greatly rigidifies the frame and at the same time decreases the size of the bolster opening 5 whereby the associated bolster 9 cannot be dropped for withdrawal in accordance with. the usual practice, and is therefore formed without the usual outer guides, but is preferably provided with the usual inner guides 10.

rlhe upper web 11 of the tension member 3 is widened between the bolster guide columns 4 to provide the required spring seating area on said upper' web. On either side of the bridge wall 6 are supported the bolster springs 12. That portion of the web 11 inwardly of the bridge wall 6 is preferably widened to a greater extent than the outer portion and desirably provided with a plurality, and in the present embodiment with three spring plank squaring lugs 13. The associated spring plank 14 is provided with corresponding apertures 15 so that it interlocks with the squaring lugs for maintaining the normal relation between the side frame and spring plank.

The inner springs 12 preferably rest on the outer end of the spring plank while the outer springs may rest directly on the upper web 11 of the tension member and surround the spring centering lugs 16. It will also be noted that two of the spring plank squaring lugs 13 are positioned so that they serve as centering lugs for the inner spring units.

The outer spring units 12 support thereon a spring cap 17, said cap bein provided with upstanding lugs 18 prefera ly angular in section with flange portions 19 extending toward each other and fitting in corresponding notches or grooves 20 in the associated bolster 9.

The outwardly extending flanges 21 are preferably so spaced that they lie along the sides of the bolster and snugly embrace the same. Those portions of the lugs 18 adjacent the union between the flanges 19 and 21 extend beyond the sides of the bolster and overlie the bolster guide columns 4, thereby forming removable outer guides for said bolster. The bolster 9 may rest directly on the spring cap 17 and the inner springs 12, the metal in the spring cap preferably corresponding in thickness with that of the spring plank so that the inner and outer springs may be of uniform height. In the present embodiment, however, I have shown a spring plate 22 which underlies the bolster and extends between the same and the spring cap 17 and inner springs 12. Said spring plate is advantageously provided with spring centering lugs or bosses 23, and may be Leer/,eee

formed to interlock with the spring cap 17. Said spring cap is unprovided with'spring centering bosses because of the depending iange portion 24 which overlies the upper portions of the outer springs 12 and retains them in the desired position.

Although an)7 desired reinforcing means may be employed for the widened portion of the upper web 11 of the tension member 3, yet for properly supporting the bolster springs l preferably Widen the distance between the side webs 25 for the tension member so that they join the upper web thereof substantially directly beneath the 'bolster springs 12, this widening occurring gradually as shown most clearly in Fig. 4.

Those portions of the tension member web outwardly of the said webs 25 are desirably reinforced by substantially triangular gussets 26 outwardly of the frame and a reinforcing web 27 inwardly thereof, said web 27 preferably .extending inwardly of the truck from the inner web 25, curving around -to provide a depending strengthening flange on the edge of the extension for supporting the spring plank and finally curving backward and returning to the side web 25 of the tension member.

Referring now to the embodiment of my invention illustrated in Fig. 7, a construction is there disclosed which may be identical with the first embodiment except that the inner spaced guides 10a instead of being disposed substantially perpendicular with respect to the side walls of the bolster are provided with inclined bolster guide engaging surfaces 28 which cooperate with the correspondingly inclined side anges of the bolster guide columns. i

From the foregoing disclosure it will be seen that I have provided a car truck in which the side frames thereof are greatly strengthened by integral bridge walls connecting the lower portions of the bolster guide columns. Such construction makes it necessary to use bolsters without outer guides and in order to retain the bolster in place spring caps are provided seated on the outer bolster spring units only and provided with preferably integral lugs which interlock in corresponding notches in the bolster, thereby providing removable outer guides for said bolster. .In assembling the bolster with re,- spect to the side frames after the spring plank has been positioned the bolster is first inserted between the bolster guide columns and above the bridge wall, the spring plate, if used, applied in position, and the spring cap inserted in place with the lugs locking the bolster with respect to the side frame.

The bolster may be raised suicie'itl to permit the application of the springs above the spring plank and below the spring cap,

after which the bolster is dropped to normal Leonesa position and the springs are securely held in place.

l claim l. ln a car truck, in combination, a side trame formed with a compression member, a tension member, struts interposed therebetween and spaced to leave a bolster opening, a bridge wall connecting said struts below the bolster opening, that portion of the tension member on opposite sides of the bridge wall being adapted to support bolster springs, bolster springs supported on said portions of the tension member, a bolster supported on said springs, and detachable trout guides tor said bolster with portions positioned between said bolster and the outer springs.

2. 'ln a car truck, in combination, a side trame formed 'with a compression member, a tension member, struts interposed therebetween and spaced to leave a bolster opening, a bridge wall connecting said struts and restricting the size ot the bolster opening whereby a bolster associated therewith cannot be dropped for withdrawal, that portion of the tension member on opposite sides of the bridge wall being formed tor the support of bolster springs, a set ot bolster springs positioned on said portions on each side of said bridge wall, a bolster supported on said sp1-ings, a` spring cap overlying the outer set of springs and positioned between the same and the outer end of the bolster, said spring cap being formed with upwardly extending portions interlocking with the bolster and projecting beyond'the struts of the frame for locking said bolster in place.

3. ln a car truck, in combination, a side frame formed with a compression member,

a tension member, struts interposed therebetween and spaced to leave a bolster opening. a reinforcing portion of said frame extending between the lower portions ot said struts and restricting the size of said bolster opening, spring supporting portions formed on the frame on opposite sides of said reinforcing portion, a setI of bolster springs supported on said portions on opposite sides ot the reinforcing portion, a spring plank positioned between the inner set ot springs and the corresponding spring supporting portion of t-he frame, a spring cap supported on the outer set of springs, a bolster supported on said spring cap and said sets ot springs. said spring cap being provided with upstanding outer guide portions interlocking in corresponding notches in the bolster and engaging the outer sides of said struts whereby said bolster is detachably held in place.

4t. ln a car truck, in combination.,l a side frame formedwith a compression member, a tension member, struts interposed therebetween and spaced to leave abolster opening, said bolster opening having its lower edge disposed above the tension member so that the associated bolster cannot be dropped for withdrawal, a set ot' springs supported by said tension member and with their upper ends projecting above said lower edge, a spring cap resting on the outermost of said springs, a bolster 'on said spring cap and the remainder of said springs, said bolster being unprorided with outer guide lugs but formed instead with vertical slots, and lugs extending upwardly from said spring cap in the slots in said bolster and extending outwardly to engage the struts on the frame for holding said bolster in place.

5. ln a car truck, in combination, a side frame formed with a compression member, a tension member, struts interposed therebetween and spaced to leave a bolster opening, a bridge wall connecting said struts below the bolster opening, a set of springs Supported on said tension member on either side of said bridge wall, a spring cap overlying the springs positioned outwardly on said bridge wall and provided with a flange extending outwardly of said springs, a bolster supported on all ot said springs and resting on said springcap, the endof said bolster being notched beyond the outer edge of the said side trame struts, and upwardly extending lugs on said spring cap engaging in said notches and against said struts for holding said bolsterin place.

6. ln a car truck, in combination, a side frame formed with a compression member, a tension member, strut-s interposed therebetween and spaced to leave a bolster opening, a bridge wall connecting said struts below the lbolster opening, springs supported on said tension member on either side of said bridge Wall, that portion of said tension member inwardly of said bridge wall being extended and provided with a plurality' of squaring lugs, a spring plank formed with apertures receiving said lugs, resting thereon t and. extending to said bridge wall, the inner springs resting on said spring plank, and a. bolster supported on all of said springs.

l'. ln a car truck, in combination, a side trame formed with a compression member,

INI

a tension member, struts interposed therebetween and spaced -to leave a bolster opening, a bridge wall connecting said 'struts below the bolster opening, the tension member on either side ot said bridge wall being extended in order to support bolster springs and further extended inwardly to provide for hrmly anchoring an associated spring plank with respect thereto, a spring plank resting on said inward extension and interlocked therewith, bolster springs resting on said spring plank, bolster springs supported on the tension member outwardly of said bridge wall, a cap formed of metal of a. thichess corresponding with that of the spring plank resting on said springs outwardly ot said bridge wall, and a bolster supported on all of said springs.

ten

frame formed with a compression member, a

tension member, struts interposed therebetween and spaced to leave a bolster opening, a bridge wall connecting said struts below the holster opening, the tension member on either sideof said bridge wall being extended in order to support bolster springs and further extended inwardly to provide for firmly anchoring an associated spring plank with respect thereto, a spring plank resting on said inward extension and interlocked therewith, bolster springs resting on said spring plank, bolster springs supported on the tension member outwardly of said bridge wall, a spring cap formed of metal of a 'thickness corresponding with that of the spring lank resting on said springs outwardly o said bridge wall, and a bolster supported on all of. said springs, the spring cap beingformed with upwardly extending lugs interlockin in corresponding notches adjacent the end o the bolster and extending outwardly'of said silde frame struts for holding said bolster in p ace.

9. A spring cap for bolster springs formed with a normally horizontal portion adapted to overlie said springs, and vertically extendf ing lugs adapted to interlock in corresponding notches in the associated bolster and. form detachable outer guides therefor.

10. A spring cap for bolster springs comprising a normally horizontal plate formed with a depending flange adapted to overlie associated bolster springs, and integral upstanding'angular lugs formed with portions adapted to interlock 1n corresponding notches in the associated bolster and extending beyond said bolster to provide outer guides therefor.

11. In a railway car truck, the combination of side frames, a bolster, each side frame havin a central opening to receive an end of the bo er, the' latter having' inner 'lateral abutments coacting with the side frames, springs under the bolster to support it, a member connecting the frames at their lower portion and having interlocking relation therewith, removable means co-operable with the ends of the bolster and constituting springL seats and providing outside stops to abut the side frames, said bolster having its sides notched and said stops extending upwardly along the sides of the bolster in interlocking relation with the notched portions thereof, whereby after removal of said removable means the side frames may be withdrawn laterally after they have been relieved of their load without substantial disturbance of the normal relation between the bolster and connecting member, and without disturbance of the inner bolster abutments.

12. In a car truck, the combination of a side frame, springs carried by the side frame, a spring seat member above the springs and spring seat member having stop means fitting in said notches and adapted to abut the side frame.

13. In a car truck, the combination of a side frame, springs carried by the side frame, a

spring seat member above the springs and engaged with said frame,said member constituting a bearing for portions of certain of the springs, and a bolster resting partly on certain of the springs and partly on said member and interlocked with the latter, the bolster being provided with inner stop means abutting the side frame, said spring seat member having portions providing outer stop means adapted to abut the side frame.

14. In a railway truck, in' combination, a

side frame formed with a compression member, a tension member, struts interposed therebetween and spaced to leave a bolster opening, said bolster opening having its lower edge spaced at such a distance from the tension member that the associated bolster cannot be dropped to disengagement from the frame, a set of springs mountedon said tension member with their upper ends projecting above said lower edge, a spring cap resting on said springs, a bolster supported by means of said spring cap and springs and unrovided with fixed outerguide lugs but movable lugs extending in the slots in said bolster and with portions extending outwardly beyond the sides of the bolster to en age said struts and prevent disengagement o the bolster from the frame.

15. In a railway vehicle truck, in combination, a pair of side frames, a bolster, each side frame having a central. opening to receive an end of the bolster, the latter having inner lateral abutments adapted to coact with the side frames, supporting springs di osed between said bolster and portions o the side frame, a member connectin the frames at their lower portions and having interlocking relation therewith, removable means cooperable with the ends of the bolster and providing outside stops adapted to abut the side frames, said bolster having its sides notched and said stops extending upwardly along the sides of the bolster in interlocking relation with the notched portions thereof, whereby after removal of said removable means the side frames may be withdrawn laterall after they have been relieved of their loa u on disengagement of said connecting mem r.

16. In a railway truck, in combination, a side frame,springs carried thereby, a spring seat member above said springs and normally engaging said frame, said member constituting a.` spring bearing, and a bolster supported by said member and springs, said bolster being provided with inner stop means adapted to abutthe side frame, and means associated with said spring seat member and extending therefrom to said bolster, and having portions interlocked with said bolster and providing outer stop means therefor adapted to abut the side frame.

In testimony whereof I aix my signature.

DONALD S. BARROWS. 

